公开(公告)号：US20220307773A1

公开(公告)日：2022-09-29

申请号：US17612573

申请日：2019-10-28

Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY

Inventor： Lizhi ZHANG ,  Hong YU ,  Chuanshuai DONG

IPC: F28D20/00 ,  C09K5/06

Abstract: A controllable phase change material bag and a preparation method and an application thereof are provided. The preparation method comprises the following steps: 1, form a metal plate or a metal bar with a rough surface, embedding a powder seed crystal that induces a phase change material to nucleate on the surface, then placing the metal plate or the metal bar in a sodium acetate solution to obtain a controllable trigger metal electrode (1); and 2, mixing a sodium acetate trihydrate crystal, water and a thickener to obtain an oversaturated phase change heat storage solution, pouring the solution into a metal ball (2), carrying out encapsulation after inserting the controllable trigger metal electrode obtained in the step 1 and a conducting electrode (3), and finally placing in the water bath to preserve heat to obtain the controllable phase change material bag.